The problem is i've got a samsung d900 and don't know how i get them in the right folderthe jad files en jar files all are coming in other filesinstead of games or something but i can't set them int that folder

Hello, I'm downloading games on mobile9 but the problem is that I can't chang winrar files into jar files... I've read the explenations to do this but I don't understand how i've got to change this... My Phone is a K800.